CVEs-PoC/2021/CVE-2021-4191.md

### [CVE-2021-4191](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4191)
![](https://img.shields.io/static/v1?label=Product&message=GitLab&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D13.0%2C%20%3C14.6.5%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D14.7%2C%20%3C14.7.4%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=%3E%3D14.8%2C%20%3C14.8.2%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Information%20exposure%20in%20GitLab&color=brightgreen)

### Description

An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/20142995/nuclei-templates
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/Adelittle/CVE-2021-4191_Exploits
- https://github.com/K3ysTr0K3R/CVE-2021-4191-EXPLOIT
- https://github.com/K3ysTr0K3R/K3ysTr0K3R
- https://github.com/bigpick/cve-reading-list
- https://github.com/fardeen-ahmed/Bug-bounty-Writeups
- https://github.com/insecrez/Bug-bounty-Writeups
- https://github.com/j4k0m/really-good-cybersec
- https://github.com/kh4sh3i/Gitlab-CVE